Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Tina Xu
Optometrist in Las Vegas, NV · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669835211
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Registry record
Entity type Individual (Type 1)
Name Tina Xu
Sex Female
Practice address 4100 Blue Diamond Rd, Las Vegas, NV, 89139
Phone (702) 824-1510
Enumeration date Mar 31, 2016
Last updated in NPPES Jul 21, 2022
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is NPI 1669835211 active?
Yes, as of the latest NPPES snapshot, NPI 1669835211 is active (record last updated 2022-07-21).
How do I verify Tina Xu's NPI record?
Cross-check NPI 1669835211 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.